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Error probability performance and ergodic capacity of L-branch switched and examine combining in Weibull fading channels

Error probability performance and ergodic capacity of L-branch switched and examine combining in Weibull fading channels

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  • Author(s): A.M. Magableh 1  and  M.M. Matalgah 2
    • View affiliations
    • Affiliations: 1: Department of Electrical Engineering, Jordan University of Science and Technology, Irbid, Jordan
      2: Department of Electrical Engineering - Center for Wireless Communications, The University of Mississippi, USA
  • Source: Volume 5, Issue 9, 10 June 2011, p. 1173 – 1181
    DOI:  10.1049/iet-com.2009.0703 , Print ISSN 1751-8628, Online ISSN 1751-8636
© The Institution of Engineering and Technology
Published

In this study, we consider a switched and examine combining (SEC) diversity scheme over independent and identically distributed (i.i.d.) L-branch Weibull fading channels and evaluate its performance in terms of ergodic capacity and the bit error rate (BER) for a class of coherent modulation schemes. The authors use the probability density function (pdf) of the effective signal-to-noise ratio (SNR) at the output of the SEC combiner in evaluating the BER and ergodic capacity for the considered model. The results are presented in closed-form expressions that are shown to generalise some special cases that are known in the literature. The general expressions are also shown to reduce to some other novel cases that are not reported in the literature. Numerical results and simulations are provided to verify the derived expressions.

Inspec keywords: modulation; numerical analysis; channel capacity; error statistics; diversity reception; fading channels

Other keywords: BER; numerical simulation; bit error rate; SNR; coherent modulation scheme; L-branch switched and examine combining diversity scheme; error probability performance; signal-to-noise ratio; ergodic capacity; SEC diversity scheme; probability density function; independent and identically distributed L-branch Weibull fading channel

Subjects: Radio links and equipment; Modulation and coding methods; Other topics in statistics; Other numerical methods

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